/*
* _08LumaQQ - Java _08QQ Client
*
* Copyright (C) 2004 luma <stubma@163.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package edu.tsinghua.lumaqq.qq.beans;

import java.nio.ByteBuffer;

import edu.tsinghua.lumaqq.qq._08QQ;

/**
 * <pre>
 * 这个Bean用在下载好友分组时
 * </pre>
 *
 * @author luma
 * @see edu.tsinghua.lumaqq.qq.packets.in.DownloadGroupFriendReplyPacket
 */
public class DownloadFriendEntry {
    // 好友的QQ号，或者是群的内部ID
    public int qqNum;
    // 好友类型，是好友，还是群
    public byte type;
    // 好友所在的组
    public int group;

    /**
     * 给定一个字节流，解析DownloadFriendEntry结构
     *
     * @param buf ByteBuffer对象
     */
    public void readBean(ByteBuffer buf) {
        // 好友QQ号或者群的内部ID
        qqNum = buf.getInt();
        // 类型
        type = buf.get();
        // 组
        group = buf.get() >>> 2;
    }

    /**
     * @return true表示这一项表示一个群
     */
    public boolean isCluster() {
        return type == _08QQ.QQ_ID_IS_CLUSTER;
	}
}
